Re: [Gen-art] Review of draft-ietf-6man-rfc1981bis-04

Stewart Bryant <stewart.bryant@gmail.com> Thu, 16 February 2017 16:00 UTC

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Subject: Re: [Gen-art] Review of draft-ietf-6man-rfc1981bis-04
To: "Templin, Fred L" <Fred.L.Templin@boeing.com>, Brian E Carpenter <brian.e.carpenter@gmail.com>, "gen-art@ietf.org" <gen-art@ietf.org>
References: <148665359396.20513.9749548375095869760.idtracker@ietfa.amsl.com> <2997d33f-3884-7831-50ed-1713c93b3867@gmail.com> <b9dfd941-0eba-c257-fef4-2f5e6bbd82a8@gmail.com> <078b28a9a26540da9e4caaba4c436cd3@XCH15-06-08.nw.nos.boeing.com> <440c60d3-0687-c7f1-f8b6-19620e6f618a@gmail.com> <6cb665e0a2244dae93e1b5b91bd9495a@XCH15-06-08.nw.nos.boeing.com> <fce8c0ef-25b7-9ba7-a5bf-9b5d7f2b19fc@gmail.com> <f4f81574e09e45169438d39afeb83369@XCH15-06-08.nw.nos.boeing.com> <1fb9a3ad-19e5-0b35-d15a-e74fed88bb8b@gmail.com> <cb03ceda3ecb4241ad867302a3195bf4@XCH15-06-08.nw.nos.boeing.com>
From: Stewart Bryant <stewart.bryant@gmail.com>
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Date: Thu, 16 Feb 2017 15:59:56 +0000
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On 14/02/2017 23:00, Templin, Fred L wrote:
> Unless there is operational assurance of
> some size X>1280, however, tunnels have to use fragmentation to
> guarantee that - at a minimum - packets up to 1280 will get through.

In that case there really needs to be a note about MPLS.

You can fragment into an IP tunnel, but not an MPLS tunnel, because you 
cannot fragment the payload as you can in IPv4 and you cannot fragment MPLS.

Stewart